Where does “mouthful” come from?

Mouthful derives from Middle English -ful and Old English -ful combined with Proto-Germanic munþaz, which traces to Proto-Indo-European men- and ultimately pleh₁-, meaning to fill or be full.

mouthful (English): The amount that will fit in a mouth; Quite a bit;...

Definitions

  1. The amount that will fit in a mouth; Quite a bit;...

Ancestry of “mouthful”, step by step

mouthful traces back through two separate lines of ancestry.

via English mouth

StepLanguageWordMeaning
1EnglishmouthThe opening of a creature through which food is...
2Middle EnglishmouþAlternative form of mouth
3Old Englishmūþmouth, opening, door, gate
4Proto-West Germanic*munþmouth
5Proto-Germanicmunþazmouth
6Proto-Indo-Europeanmen-to think, mind; spiritual activity; to stay,...

via Middle English mouthful

StepLanguageWordMeaning
1Middle Englishmouthful
Every word from Proto-Indo-European men-Every word from Proto-Germanic munþazEvery word from Proto-West Germanic *munþ